可视化三轴渗流–应力耦合伺服控制试验系统的研制与应用

doi:10.13722/j.cnki.jrme.2022.0615

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Abstract The new seepage channels were added to the original transparent triaxial compression servo-control test system to conduct the visual triaxial compression tests of rock under seepage-stress coupling conditions. Triaxial compression tests were conducted on sandstone under the conditions of different seepage states and different seepage pressure differences to verify the reliability and necessity of the test system. The experimental results show that the mechanical properties of rock were weakened under the water pressure at both ends of the rock，and the two seepage limit state tests cannot represent the influence of all the seepage-stress coupling conditions on the mechanical properties of rock. And the large strain data points in the radial strain field gradually gather near the fracture surface with the increase of axial stress，and the deformation localization occurs. Therefore，the mechanism of seepage field on rock mechanical properties can be better studied by the mechanical tests under complex seepage-stress coupling.

Key words： rock mechanics mechanical test seepage pressure difference seepage state radial strain field failure mode

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	Articles by authors
	CHEN Yian1
	2
	XU Jiang1
	2
	PENG Shoujian1
	2
	CAO Qi1
	2
	RAO Haokui1
	2

Cite this article:

CHEN Yian1,2,XU Jiang1, et al. Development and application of transparent triaxial seepage-stress coupling servo-control test system[J]. , 2023, 42(S1): 3281-3292.

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https://rockmech.whrsm.ac.cn/EN/10.13722/j.cnki.jrme.2022.0615 OR https://rockmech.whrsm.ac.cn/EN/Y2023/V42/IS1/3281

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